computation assignment - Sensitivity, Specificity, and Predictive Values

A total of 250 study subjects were enrolled in a study to examine validity and performance of a new finger stick test for diabetes. A fasting glucose test (gold standard test) was given to diagnose diabetes.

Diagnosed diabetes No Diagnosed Diabetes

Finger stick positive 40 60

Finger stick negative 10 140

4. What is the sensitivity of the finger-stick screening test?

5. What is the predictive value positive (+) of the finger-stick screening test?

6. What is the predictive value negative (-) of the finger-stick screening test?